1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/*
Copyright (C) 2010 George Kiagiadakis <kiagiadakis.george@gmail.com>
Copyright (C) 2010 Collabora Ltd.
@author George Kiagiadakis <george.kiagiadakis@collabora.co.uk>
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
%{
#include "yystype.h"
#include "generator.h"
#define YY_DECL int yylex(CodeGen *codegen)
void yyerror(CodeGen *codegen, const char *msg);
%}
%option noyywrap
%option yylineno
%option stack
id [a-zA-Z][a-zA-Z_0-9]*
%x REGISTER_TYPE
%x REGISTER_WRAPPER
%x ENUM
%x ENUM_EAT_ASSIGNMENT
%x INSTRUCTION
%x LINE_COMMENT
%x C_STYLE_COMMENT
%x NAMESPACE
%x CLASS
%x EAT_TEMPLATE
%x MACRO
%%
<REGISTER_TYPE,REGISTER_WRAPPER,ENUM,INSTRUCTION>{id} { yylval.Id = new QByteArray(yytext); return IDENTIFIER; }
Q[A-Z]+_REGISTER_TYPE\( { yy_push_state(REGISTER_TYPE); return REGISTER_TYPE_BEGIN; }
<REGISTER_TYPE>{
:: { return SCOPE_RESOLUTION_OPERATOR; }
\) { yy_pop_state(); return REGISTER_TYPE_END; }
[[:space:]]*
. { yyerror(codegen, "Syntax error in QGLIB_REGISTER_TYPE"); }
}
Q[A-Z]+_WRAPPER\( { yy_push_state(REGISTER_WRAPPER); return REGISTER_WRAPPER_BEGIN; }
Q[A-Z]+_WRAPPER_DIFFERENT_C_CLASS\( { yy_push_state(REGISTER_WRAPPER); return REGISTER_WRAPPER_BEGIN; }
Q[A-Z]+_WRAPPER_FAKE_SUBCLASS\( { yy_push_state(REGISTER_WRAPPER); return REGISTER_WRAPPER_SUBCLASS_BEGIN; }
<REGISTER_WRAPPER>{
, { return COMMA; }
\) { yy_pop_state(); return REGISTER_WRAPPER_END; }
[[:space:]]*
. { yyerror(codegen, "Syntax error in wrapper definition"); }
}
[[:space:]]enum { yy_push_state(ENUM); return ENUM_KEYWORD; }
<ENUM>{
\{ { return LEFT_BRACE; }
\} { return RIGHT_BRACE; }
, { return COMMA; }
= { yy_push_state(ENUM_EAT_ASSIGNMENT); }
; { yy_pop_state(); return SEMICOLON; }
[[:space:]]*
. { yyerror(codegen, "Syntax error in enum definition"); }
}
<ENUM_EAT_ASSIGNMENT>{
, { unput(','); yy_pop_state(); }
\} { unput('}'); yy_pop_state(); }
\n
.
}
<*>\/\/ { yy_push_state(LINE_COMMENT); }
<LINE_COMMENT>{
\n { yy_pop_state(); }
codegen: { yy_push_state(INSTRUCTION); return INSTRUCTIONS_BEGIN; }
.
}
<INSTRUCTION>{
\n { unput('\n'); yy_pop_state(); return INSTRUCTIONS_END; }
= { return INSTRUCTIONS_ASSIGN_OPERATOR; }
, { return INSTRUCTIONS_SEPARATOR; }
[[:space:]]
. { yyerror(codegen, "Syntax error in instruction comment"); }
}
<*>\/\* { yy_push_state(C_STYLE_COMMENT); }
<C_STYLE_COMMENT>{
\*\/ { yy_pop_state(); }
\n
.
}
[[:space:]]namespace { yy_push_state(NAMESPACE); return NAMESPACE_KEYWORD; }
<NAMESPACE>{
{id} { yylval.Id = new QByteArray(yytext); yy_pop_state(); return IDENTIFIER; }
[[:space:]]*
. { yyerror(codegen, "Expected identifier after namespace keyword"); }
}
[[:space:]]class { yy_push_state(CLASS); return CLASS_KEYWORD; }
<CLASS>{
[A-Z]+_EXPORT
{id} { yylval.Id = new QByteArray(yytext); yy_pop_state(); return IDENTIFIER; }
[[:space:]]*
. { yyerror(codegen, "Expected identifier after class keyword"); }
}
template[[:space:]]*\< { yy_push_state(EAT_TEMPLATE); }
<EAT_TEMPLATE>{
\< { yy_push_state(EAT_TEMPLATE); };
\> { yy_pop_state(); }
\n
.
}
/* Eats only one-line defines. Used to eat the #define QGLIB_REGISTER_TYPE(T),
which would be a syntax error for codegen otherwise. */
#define { yy_push_state(MACRO); }
<MACRO>{
\n { yy_pop_state(); }
.
}
<*><<EOF>> { return EOF; }
\n
.
%%
|
